Stack Overflow Error and I cant find any recursive methods

I am trying to create a system for object interaction in VR, but whenever I release the grip, the release function causes a stack overflow.

This is called on the hand whenever the value of the grip is changed (does not seem to be the issue):

 private void Grip(float val)
     {
         anim.SetFloat("Grip", val);
         if (val > gripButtonThreshold && !isGrabbing)//If holding down grip (only at start)
         {
             //find closest object
             GameObject closestInteractable = FindObjectOfType<Interactable>().gameObject;
             foreach (Interactable obj in FindObjectsOfType<Interactable>())
             {
                 if (Vector3.Distance(holdPoint.position, obj.transform.position) < Vector3.Distance(holdPoint.position, closestInteractable.transform.position))
                 {
                     closestInteractable = obj.gameObject;
                 }
             }
             closestObject = closestInteractable;
             isGrabbing = true;
         }
         if (val < gripButtonThreshold)//If not holding down grip
         {
             if (isGrabbing)
             {
                 isGrabbing = false;
             }
             if (hasObject)
             {
                 holding.GetComponent<Interactable>().Release(this);//Call release on interactable script
             }
         }
     }

This is the code on the interactable script (this seems to be the issue):

 private void OnTriggerStay(Collider other)
     {
         if (other.TryGetComponent(out Hand hand) && hand.isGrabbing && hand.closestObject == gameObject && !hand.hasObject)//if a hand is grabbing and colliding with you (only called once)
         {
             //Call method set in inspector (Pick Up in Movable Object)
             for (int i = 0; i < OnInteract.GetPersistentEventCount(); i++)
             {
 ((MonoBehaviour)OnInteract.GetPersistentTarget(i)).SendMessage(OnInteract.GetPersistentMethodName(i), hand);
             }
         }
     }
 
     public void Release(Hand hand)//called by hand once, but causes stack overflow
     {
         //call method set in inspector (release in MovableObject)
         for (int i = 0; i < OnRelease.GetPersistentEventCount(); i++)
         {
             ((MonoBehaviour)OnRelease.GetPersistentTarget(i)).SendMessage(OnRelease.GetPersistentMethodName(i), hand);
         }
     }

Finally, Here is the code on movable object (this might be the issue):

 public void Release(Hand script)//called from interactable through inspector
     {
         rb.isKinematic = false;//make the rigidbody do stuff now
         rb.velocity = velocity;//set the velocity to the velocity while kinematic
         beingHeld = false;
         transform.parent = null;//unparent from hand
         script.holding = null;//set handto be not holding
         script.hasObject = false;//set hand to be not holding
     }
 
     public void PickUp(Hand hand)//called from interactable through inspector
     {
         hand.hasObject = true;//set hand to be holding
         rb.isKinematic = true;//set rigidbody to be still
         hand.holding = gameObject;//set hand to hold self
         beingHeld = true;
         holdPoint = hand.holdPoint;
 
     }